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This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of?
Correct!
Wrong!
The property of a substance to absorb moisture from the air on exposure is called ?
Correct!
Wrong!
Permanent hardness of water can be removed by adding?
Correct!
Wrong!
Which metal pollute the air of a big city?
Correct!
Wrong!
Which of the following does not contain a coinage metal?
Correct!
Wrong!
Potassium Permanganate is used for purifying drinking water, because?
Correct!
Wrong!
From which mineral is radium obtained?
Correct!
Wrong!
The most important ore of aluminium is?
Correct!
Wrong!
Science Quiz 142
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